Driven by the approval of Bill 4162/19 of Brazilian Executive Power and João Pessoa's cartography of the commons — presented by Gota D'Água Project at BRCIDADES regional forum in December 2019 — this proposal discusses sanitation problems in cities of northeastern Brazil, rich in estuaries and mangroves, speculating solutions to tackle problems of waste pollution in slums and nature reserves in a Chthulucene era. The conciliation between architectural spaces and service structures, since the eighteenth century, seems to approach hermetic systems but bring us closer to collapses similar to those imagined by Terry Gilliam’s Brazil: "... tubes burst from partitions and Homasote ceilings, a sort of hernia that airs the scandal of the interior” as pointed by Comaroff and Ker-Shing in Horror in Architecture (2013). We chose for the use of digital collage to express a design intent, using brazilian art such as vegetations from Tarsila do Amaral’s paintings and natural science illustrations.